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Dairy Cattle And Reproduction

Subjects : industries, dairy
Instructions:
  • Answer 50 questions in 15 minutes.
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  • Match each statement with the correct term.
  • Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.
1. Start of the reproductive tract for the female. located outside of the body






2. Important 'landmark' during palpation






3. Supply nutrients for the sperm following ejaculation and deposition into the female reproductive tract






4. Duct through penis that carries sperm and urine






5. Located directly in front of the cervix. fertilized egg implants here. connected to two uterine horns. implantation occurs on the same side as ovulation occurred.






6. Sperm production






7. (male) pushes the testes upward toward the body for warmth or protection






8. Days which have decreasing daylight hours

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9. (switzerland) 2nd in size and milk production - most muscle -






10. Scar tissue plugs up chambers of udder






11. Boars and stallions-> deliver semen directly into the cervix. bulls and rams-> deliver semen into the vagina.






12. 265-285 days






13. Reproduction. more offspring leads to more feed costs - but is offset by reproduction numbers






14. Microscopic - make sure not sterile - very few bulls are actually tested






15. Cycle that lasts weeks (ovulation->hormone cycles->ovulation)






16. 30 hours after estrus begins






17. (LH) causes female's egg to break (her period)






18. Larger the cow - more milk is produced; smaller the cow - less milk is produced






19. 336 days






20. (from Jersey Islands in Great Britain) Smallest cow - least milk - highest butterfat %






21. Front feet and head first. (except for hogs and dogs)






22. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






23. Implies the amount of estrogen production






24. Male on one pin and female on other side






25. Gonadotropic (GnRH) is (FSH and LH). Follical Stimulating (FSH) and Lutinizing Hormone (LH).






26. Castration tool which clamps down on the vans deferens. causes the sperm to not reach the penis to be ejaculated






27. 1. bring in new genes - 2. replace males with leg problems (difficulty breeding) Note: culling has a much greater emphasis in the dairy industry vs the beef industry.






28. Important 'landmark' during palpation






29. % of fat in milk. makes cheeses and ice cream. regulates cost of milk






30. Constitute 50-90% of the volume of the ejaculate. (3 glands total: seminal vesicles - prostate gland - cowper's gland)






31. 1. reproduction - 2. mastitis/udder problems - 3. low milk production - 4. soundness/poor feet and legs (living on concrete)






32. 30-38 hours after estrus cycle begins






33. Milk ~305 days - dry 60 days prior to calving






34. Serves as a bone cradle for the reproductive system. used greatly in palpation as a 'landmark'.






35. Head - neck - mid-piece - tail. genetic material - has an enzyme covering that allows it to penetrate the egg






36. Milk is 15% ________ and 85% __________.






37. Why Dairy calves are fed powdered milk.






38. (switzerland) 2nd in size and milk production - most muscle -






39. (male) definition: duct located outside of the testes. 3 parts: head - body - tail. 4 Functions:concentrate sperm - store sperm - transport sperm - site of sperm maturation. entire process takes ~40-60 days






40. Knife-loose ~1wk of growth. band-loose ~2wks of growth.






41. Hold the penis in the bulls body when not in use. releases penis before ejaculation or urination.






42. Days which have decreasing daylight hours

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43. What makes the milk flow through the mammary glands?






44. 10-37 (21) days






45. Provide nourishment for the developing sperm






46. Contains and regulates the temp of the testes for sperm production






47. Milk ~305 days - dry 60 days prior to calving






48. Depository for semen during insemination. where urine leaves the body






49. (FSH) helps to regulate puberty - needed every day - stimulates the sertoli cells to produce nutrients for the sperm






50. Small tubes located at the upper ends of the uterine horns. connects uterine horn to infundibulum. passageway of the egg.







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